cub 2164 fly wheel issue

[bertsmobile1]

You can glue in another EXACT copy to replace the missing one
Or take out the one exactly opposite

The flywheel is balanced, by weight and for electrical generation
running without 1 magnet will get up vibrations in the flywheel which may do a lot of damage.
Vibration are funny things some times a really big one that makes the mower jump sideways will have no consequences
While other times, ones you can barely feel will destroy the entire engine. :confused2:

So you remove the opposite one to keep the flywheel in weight balance.

A lot of skid steers out there run with no magnets left in the flywheel at all and they just recharge the battery overnight

 

[cubbyboy]

You can glue in another EXACT copy to replace the missing one
Or take out the one exactly opposite

The flywheel is balanced, by weight and for electrical generation
running without 1 magnet will get up vibrations in the flywheel which may do a lot of damage.
Vibration are funny things some times a really big one that makes the mower jump sideways will have no consequences
While other times, ones you can barely feel will destroy the entire engine. :confused2:

So you remove the opposite one to keep the flywheel in weight balance.

A lot of skid steers out there run with no magnets left in the flywheel at all and they just recharge the battery overnight

So there are good good good good vibrations. I knew the 60's would do me some good some day. So if I am missing two magnets it will be balanced but I will have lost 0ne sixth the power....two out of twelve? That sounds perfectly acceptable. I found magnets on the net that are almost the same size as what I need. It would just need to be sanded with a slight concave shape. If a friend can not tell which one I replaced, I may glue it in.

 

[bertsmobile1]

Yes the annoying part is magnet making is a very specalised business and there are not many of them.
But you can not buy magnets it nevre makes sense , unless you want to sell a lot of $ 300 flywheels ( $ 700 down here ).
Good luck trying to sand them down the days of the old soft ferrite / magnetite magnets have long gone.
There is probably a business oppertunity in providing a flywheel reconditioning service.
I have about a couple of drums full sitting here that I have pinched the magnets from .
They go to an old college mate with a foundry.
Might do that this weekend as we are scheduled to get 6" so all the mowers will be staying in the shop.

 

[cubbyboy]

Yes the annoying part is magnet making is a very specalised business and there are not many of them.
But you can not buy magnets it nevre makes sense , unless you want to sell a lot of $ 300 flywheels ( $ 700 down here ).
Good luck trying to sand them down the days of the old soft ferrite / magnetite magnets have long gone.
There is probably a business oppertunity in providing a flywheel reconditioning service.
I have about a couple of drums full sitting here that I have pinched the magnets from .
They go to an old college mate with a foundry.
Might do that this weekend as we are scheduled to get 6" so all the mowers will be staying in the shop.

Are the magnets down under of opposite poles than here...as the drains drain counterclockwise? never been closer than Indonesia. I would assume any magnet of any strength would be better than no magnet. But then again, I am only a home builder not a motor builder. This is way out of my field as you can rightly see, but I do feel confident in making an EXACT duplicate. Thanks so much for the info, it is greatly appreciated. Good luck with your endeavors this weekend.

 

[Pumper54]

Cubbyboy,

If you have pulled the flywheel off check around at some of your local mower/small engine repair shops, someone just might have an old used engine sitting there that is being used for parts and you might luck out and find one for a lot less the $300. The older looking places with lots of junked mowers are the best place to go parts picking.
Tom

 

[cubbyboy]

Cubbyboy,

If you have pulled the flywheel off check around at some of your local mower/small engine repair shops, someone just might have an old used engine sitting there that is being used for parts and you might luck out and find one for a lot less the $300. The older looking places with lots of junked mowers are the best place to go parts picking.
Tom

Thanks , If replacing the magnet does not work that is exactly what I will do.

 

[bertsmobile1]

Search " Taryl fixes all- flywheel magnets".
I use a similar method but it is easier to watch than read
I use a silicone adheasive, over there use what ever he uses.
Most epoxies get too soft at flywheel temperatures and make sure you get the polarity right or you will just about reduce the output to zero.